19671484

素因数分解:

$2^2\times 7^1\times {\mathrm{31}}^1\times {\mathrm{131}}^1\times {\mathrm{173}}^1$

素因数の和:346

約数の個数: 48

約数和(自身を含む): 41158656

約数和(自身を除く): 21487172

約数列:

[1, 2, 4, 7, 14, 28, 31, 62, 124, 131, 173, 217, 262, 346, 434, 524, 692, 868, 917, 1211, 1834, 2422, 3668, 4061, 4844, 5363, 8122, 10726, 16244, 21452, 22663, 28427, 37541, 45326, 56854, 75082, 90652, 113708, 150164, 158641, 317282, 634564, 702553, 1405106, 2810212, 4917871, 9835742, 19671484]

約数ペア:

[(1, 19671484), (2, 9835742), (4, 4917871), (7, 2810212), (14, 1405106), (28, 702553), (31, 634564), (62, 317282), (124, 158641), (131, 150164), (173, 113708), (217, 90652), (262, 75082), (346, 56854), (434, 45326), (524, 37541), (692, 28427), (868, 22663), (917, 21452), (1211, 16244), (1834, 10726), (2422, 8122), (3668, 5363), (4061, 4844)]